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公开(公告)号：US20240333335A1
公开(公告)日：2024-10-03
申请号：US18587586
申请日：2024-02-26
申请人： Qorvo US, Inc.
发明人： Billy Verso , Michael McLaughlin
IPC分类号： H04B1/7163 , H04B1/7176
CPC分类号： H04B1/71637 , H04B1/7176
摘要： A receiver circuit for detecting and waking up a wakeup impulse sequence is provided. Herein, a transmitter circuit is configured to transmit a wakeup impulse sequence to wake up a receiver circuit. The receiver circuit includes a main receiver circuit and a wakeup receiver circuit. The main receiver circuit, which consumes far more energy than the wakeup receiver circuit, will remain in sleep mode as much as possible to conserve power. While the main receiver circuit is asleep, the wakeup receiver circuit is configured to detect the wakeup impulse sequence and wake up the main receiver circuit if the wakeup impulse sequence is intended for the receiver circuit. By keeping the main receiver circuit asleep as much as possible, it is possible to reduce power consumption, thus making the receiver circuit an ideal receiver option for an Internet-of-Things (IoT) device(s).
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公开(公告)号：US20240183973A1
公开(公告)日：2024-06-06
申请号：US18439013
申请日：2024-02-12
申请人： Qorvo US, Inc.
IPC分类号： G01S13/76 , B60R25/20 , B60R25/24 , B60W30/06 , H04B1/7163 , H04W12/037
CPC分类号： G01S13/765 , H04B1/7163 , H04W12/037 , B60R25/2072 , B60R25/24 , B60R2325/108 , B60W30/06 , H04B2201/71634
摘要： Embodiments of a device for wireless communication are disclosed. In some embodiments, the device includes: a transceiver configured to receive a message from a second device and at least one processor. The processor is communicatively coupled to the transceiver and is configured to: generate a response message includes a SYNC portion, a start frame delimiter (SFD) portion, and a cipher portion. The SYNC portion includes a sequence of symbols forming a preamble. The cipher portion includes a ciphered sequence of pseudo-randomized pulses. The transceiver is further configured to transmit the response message.
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公开(公告)号：US20240014852A1
公开(公告)日：2024-01-11
申请号：US18216124
申请日：2023-06-29
申请人： Qorvo US, Inc.
IPC分类号： H04B1/719 , H04B1/7176 , H04B1/7163
CPC分类号： H04B1/719 , H04B1/7176 , H04B1/71635
摘要： Systems and methods for reduced interpath interference for ultrawideband (UWB) wireless communication are disclosed. In one aspect, a wireless communication device employs a systematic and non-random pulse-hopping scheme to introduce variable distances between pulses to reduce collision rates from interpath interference. In exemplary aspects, the scheme optimizes avoidance of collision rates for distances between paths of up to thirty nanoseconds (30 ns). The use of an optimized grid will be stable regardless of position of the user, thereby avoiding transmission drops and improving the user experience.
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公开(公告)号：US20230266460A1
公开(公告)日：2023-08-24
申请号：US18310810
申请日：2023-05-02
申请人： Qorvo US, Inc.
IPC分类号： G01S13/76 , H04B1/7163 , H04W12/037
CPC分类号： G01S13/765 , H04B1/7163 , H04W12/037 , B60R25/2072
摘要： A method of transmitting signals from a first node having multiple transceivers to a second node is disclosed. The method comprises receiving a message from the second node at the first node, wherein the message is received by each of a plurality of transceivers of the first node; and transmitting by each of the plurality of transceivers a respective data frame to the second node in response to the message; wherein each transceiver initiates the transmission of its respective data frame a predetermined time period after receipt of the message by the transceiver; and wherein the transmissions of the data frames from the plurality of transceivers overlap. The data frames may form part of a two-way ranging exchange.
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公开(公告)号：US20240219514A1
公开(公告)日：2024-07-04
申请号：US18392115
申请日：2023-12-21
申请人： Qorvo US, Inc.
发明人： Michael McLaughlin
摘要： A sensing radar includes a transmitter configured to transmit bursts of pulses, a receiver configured to receive a signal comprising an echo from the bursts of pulses and a leakage of the bursts of pulses from the transmitter to the receiver; an analog-to-digital converter (ADC) coupled to the receiver, and a processor coupled to the ADC. At least one of thresholds of the ADC is configured such that the ADC has a chance of at least 5% to be tripped by thermal noise at an input of the ADC regardless of an amplitude of the signal. The processor is configured to process an output of the ADC at intervals of the bursts of pulses and ignore durations of transmitting the bursts of pulses to retrieve the echo from the signal.
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公开(公告)号：US20230300005A1
公开(公告)日：2023-09-21
申请号：US18110541
申请日：2023-02-16
申请人： Qorvo US, Inc.
发明人： Igor Dotlic , Ciaran McElroy , Michael McLaughlin
CPC分类号： H04L25/0202 , H04W4/023
摘要： Systems and methods for channel estimation are disclosed. In one aspect, supercomplementary sets (SCSs) of sequences are defined and more optionally, but more particularly, supercomplementary zero-sum cross-correlation (SZC) sequence blocks are created from the SCSs and transmitted to a receiver. The receiver receives a signal that includes the SCSs or SZC sequence block(s) deformed by a channel frequency offset (CFO). The receiver may correlate the signal with the known SCS or SZC to create a signal with minimal or no side lobes from which the CFO may be removed and a channel estimate formed. Based on the channel estimate, a distance between transmitter and receiver may be determined and used for other purposes, such as the provision of location-based services.
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公开(公告)号：US20230139079A1
公开(公告)日：2023-05-04
申请号：US17883048
申请日：2022-08-08
申请人： Qorvo US, Inc.
摘要： A receiver circuit for detecting and waking up to a wakeup impulse sequence is provided. Herein, a transmitter circuit is configured to transmit a wakeup impulse sequence to wake up a receiver circuit. The receiver circuit includes a main receiver circuit and a wakeup receiver circuit. The main receiver circuit, which consumes far more energy than the wakeup receiver circuit, will remain in sleep mode as much as possible to conserve power. While the main receiver circuit is asleep, the wakeup receiver circuit is configured to detect the wakeup impulse sequence and wake up the main receiver circuit if the wakeup impulse sequence is intended for the receiver circuit. By keeping the main receiver circuit asleep as much as possible, it is possible to reduce power consumption, thus making the receiver circuit an ideal receiver option for an Internet-of-Things (IoT) device(s).
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8.发明公开公开(公告)号：US20240243949A1
公开(公告)日：2024-07-18
申请号：US18403389
申请日：2024-01-03
申请人： Qorvo US, Inc.
发明人： Igor Dotlic , Michael McLaughlin
IPC分类号： H04L25/02
CPC分类号： H04L25/024 , H04L25/0212
摘要： A method for determining a channel impulse response (CIR) estimation in ultra-wideband (UWB) communication using a supercomplementary zero-sum correlation (SZC) sequence block is provided. The method includes, obtaining, from a memory, a basic sequence of N chips and having perfect periodic autocorrelation function (PACF), N being an odd number. The method also includes performing, by a shifting logic, a circular shift of the chips in the basic sequence by a shift number to obtain a shifted sequence, the shift number being a positive number less than N. The method also includes computing, by an inverting logic, an inversion parameter of the shifted sequence. The method also includes computing, by the inverting logic, a output sequence based on the shifted sequence and the inversion parameter; and receiving, by an antenna, a transmitted sequence. The method further includes performing, by a correlator circuit, cross-correlation between the output sequence and the received sequence.
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公开(公告)号：US20240310510A1
公开(公告)日：2024-09-19
申请号：US18583966
申请日：2024-02-22
申请人： Qorvo US, Inc.
发明人： Igor Dotlic , Michael McLaughlin
CPC分类号： G01S13/765 , G01S7/288
摘要： Disclosed are methods for time-of-flight (TOF) ranging between wireless devices using single-sided two-way ranging (SS-TWR) and double-sided TWR (DS-TWR) exchanges. The SS-TWR method involves performing the exchange between the wireless devices and determining a first path angle, a relative carrier frequency offset of the initiator and responder devices, and response delay of the responder. The method also involves determining a single SS-TWR delay and calculating a TOF delta from the determined information. Finally, the method involves calculating the TOF using the TOF delta with the single SS-TWR delay. The DS-TWR method eliminates the need for the relative carrier frequency estimation. Both methods enable accurate ranging between wireless devices by considering first path angles, and delays delay, which can be used in a variety of applications such as localization and tracking of objects. The method can be implemented on a processor of one or more of the wireless devices.
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